package com.xiaoh.nio;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.SocketChannel;

/**
 * @author xiaoh
 * @ClassName NIOClient
 * @Description TODO
 * @Date 2020/5/12 00:09
 * @Version 1.0
 */
public class NIOClient {

    public static void main(String[] args) throws IOException {
        //得到一个网络通道
        SocketChannel socketChannel = SocketChannel.open();
        //设置非阻塞模式
        socketChannel.configureBlocking(false);
        //提供服务器端的ip 和 port
        InetSocketAddress inetSocketAddress = new InetSocketAddress("127.0.0.1", 6666);
        //连接服务器
        if (!socketChannel.connect(inetSocketAddress)) {
            while (!socketChannel.finishConnect()) {
                System.out.println("因为连接需要时间，客户端不会阻塞，可以做其它工作");
            }
        }

        //如果连接成功，就发送数据
        String str = "hello, xiaoH";
        ByteBuffer buffer = ByteBuffer.wrap(str.getBytes());
        //发送数据，将buffer写入到channel
        socketChannel.write(buffer);

        System.in.read();
    }
}
